Colour-changing wrap could let you know when food has spoiled

1 year ago 165

Technology

A biodegradable plastic-like wrapper made from silk changes colour erstwhile exposed to rotting foods and degrades rapidly successful soil

By Karmela Padavic-Callaghan

Best earlier dates aren't ever the best

“Best before” dates aren’t ever the best

Shutterstock/Sheila Fitzgerald

Biodegradable nutrient packaging could alert eaters that their nutrient is spoiling by changing colour.

Date labels enactment connected perishable foods are often mediocre predictors of erstwhile nutrient volition go unsafe to eat, which tin pb to some food waste and food poisoning, says Benedetto Marelli astatine the Massachusetts Institute of Technology.

So, helium and his colleagues decided to make packaging that tin respond to changes successful the nutrient it contains to amended bespeak erstwhile it has gone bad.

They made 4 films akin to …

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